This list is not in any Particular order:
| Name | Connection with OG | Date / Year of passing away | Additional mention |
| Mr L. O. Edwards | Teacher and later Headmaster from 1950-65 | Jan 16,2013 | HM OGBS from 1958-1965 and then HM and Principal at Wynberg Allen |
| Mrs D. Edwards | Teacher (1950-1965) | ||
| Mr B R Pasricha | Principal (1958-1970) | Aug 29 | |
| Mr D M Swing | Teacher (1958-1987) | ||
| Mr M N Banerjee | Teacher (1961-1985) | ||
| Mr S L Sharma | Teacher | ||
| Mr N D Chimmwal | Teacher (1957-1984) | ||
| Mr A L Meston | Teacher (1959-1992) | May 13, 2012 | |
| Mr B N Ghosh | Teacher | ||
| Mrs S B Bhaskar | HM Junior School | June 30, 2015 | |
| Paresh Acharya | Student | Aug 5, 2016 | |
| Shyla Arora | Student | June 23, 1985 | Shyla was a flight attendant with AIR INDIA. She was on the ill fated FLIGHT : Air India Flight 182 from Toronto to London.Boeing 747-237B “Emperor Kanishka flight”) that was destroyed by a bomb at an altitude of 31,000 feet (9,400 m). http://news.bbc.co.uk/2/hi/south_asia/4357619.stm |
| Gautam Dhara | Student (1986 batch) | July 23, 2016 | |
| Pramod Kumar | Student | Aug 15, 2016 | Ashoka House captain of 1991 batch laid down his life for the nation. Commandant of the 49th battalion of CRPF, Pramod was killed in an encounter with militants in Nowhatta, Srinagar |
| Mr B N Khanna | Teacher History | ||
| Mr Hemant Juyal | Teacher- PTI | ||
| Mr Naqvi | Teacher- Chemistry | ||
| Patrick Corbett | Student 1954 | Dec 4, 2011 | |
| Anil Edwards | Student 1962 Batch | July 4, 2007 | |
| Capt Dilip Kumar Jha | Student | Feb 22, 2000 | Kirti Chakra (Marnoparant) This 25 year old fell this day, fighting militants in Mendhar, J&K. |
| Renu Bhatnagar | Student | ||
| Anil Bhatnagar | Student | ||
| Anita Swing | Student 1976 batch | Dec 25, 2012 | |
| Furkhan Ahmed | Student | ||
| Mrs Parti | Teaher JS | Dec 11,2009 | |
| Sukumar Mallick | Student | April 2, 2016 | |
| Mr Keshav Chandra Kukreti | Head Master (1987) | June 12, 2021 | Joined Oak Grove in 1959 and retired in 1987 |
| Neha Singh | Student 2008 batch | July 20, 2015 | |
| Shantilal Kanjilal | Student | 1964 | |
| Mrs. Madhuri Upadhya | Teacher OG JS | March 22, 2014 | |
| Ms. N C David | HM GS | ||
| Mr Athar Ali Khan | HM BS and Teacher | ||
| Mrs. Lily Gupta | HM JS | ||
| Mr O P Gomes | HM BS | ||
| Anil Bhakri | Student 1970 batch | ||
| Mrs Haslam | HM JS | ||
| Capt. R N Gupta | Student | Dec 18, 1971 | The last day of the 1971 war with Pak –18 Dec 1971 (Mrs L Gupta’s son) |
| Cadet J K Gupta | Student | April 18, 1972 | Lost his life while training at IMA (Mrs L Gupta’s son) |
| S.Rajeev Kumar | Student 1989 batch | June 17, 2014 | |
| Capt R S Mehalawat | Student 1963 Batch | 1974 | |
| Brig Akhil Chaturvedi | Student 1964 | 2007 | |
| Maj G C Verma | Vir Chakra | ||
| Alok Ranjan | Student | Aug 28, 2004 | Accident at school, while NCC firing |
| Mr. Jim Ross | Feb 18,2014 | Oldest known Oak Grovian. Wrote a book that has a section on Oak Grove and his time in India. Passed away at the age of 99. | |
| Mrs Madhua Kalia | Teacher – Music JS | ||
| Mrs. Sarla Saxena | Teacher Dance JS | ||
| Mr B S Saxena | Admin Office Staff (OG) | ||
| Mr K Rishi | Admin Office Staff (OG) | ||
| Mr R B Lall | Admin Office Staff (OG) | ||
| Mr D P Shukla | Teacher BS | Dec 1, 2018 | |
| Mrs Prabha Zutshi | Teacher GS | ||
| Avneet Gogia | Student 1975 batch | Spirit of Oak Grove | |
| Mrs Attia Abid (Ahmed) | Student 1964 batch | Oct 2011 | |
| Ms Bertha Caston | Matron OG Hospital | ||
| Puneet Monga | Student | Sept 7, 2021 | A Die hard OakGrovian and Oak Grovian to the core |
| Kamna Verma (Dina) | Student 1964 | Jan 7, 2022 | Mr Dina’s (teacher) daughter |
| Ashok Pradhan | Student 1964 | ||
| A C Verma | Student 1941 | Dec 4, 2021 | Passed away at a young age of 97 |
| Mr P K Bagchi | Teacher | March 24, 2019 | Music Teacher |
| Peter Moss | Student 1950’s | ||
| Laurie Dorton | Student 1950’s | March 26, 2017 |